Combined settler and filter.



v E. WAGNER; COMBINED SETTLER AND FILTER.

Patented 0013 15, 1912.

APPLICATION FILED AUG.1 2, 1911.

' ATTORNEY WITNESSES oF IoE.

EMANUEL WAGNER, OF NEW YORK, N. Y.

oomnnmn snrrtnn AND FILTER,

Specification of Letters Patent. 1 Application filed August 12, 1911. Serial Iio. 648,740.

Patented Oct. 15,1912.

To all whom "it my concern:

. Be it known that I, EMANUEL WAGNER, a

subject of the King of Hungary, and P851? dent of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Combined Settlers and Filters, of which the following is a specification. I

The present invention relates to improvements in metallurgical apparatus.

-One of the objects of the invention is to provide a combined settler and filtering tank for separating metallic precipitates from solutions obtained by the cyanid, hyposulfid or other processes. Primarily the invention has for its objects to produce an apparatus of this type which is simple and-inexpensive in construction, eiiicient in operation, and wherein the settling and filtering operations may be carried on simultaneously, continuously and automatically.

Another object of the invention is to provide an apparatus of this character which is economical in that it avoids all losses, and which obviates the necessity of filtering presses used heretofore for similar purposes, or reduces, at least, considerably the size of such presses. v

A further object of the invention is to construct a simple apparatus for the purpose specified which does not require power machinery for its operation.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter fully described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the severalparts and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which tion of the apparatus; and Fig. 2 is a section taken on line 22 of Fig. 1.

In the drawings, the numeral 3- indicates a receptacle or tank of, preferably, cylindrical shape with a conical bottom 4, which 5 tank may be molmted upon a supporting frame, not shown in the drawings. The

tank may be made of iron, wood or other a junction member 9 with a, preferably,

flexible pipe 10, the discharge end 11 of which may be raised or lowered to suit the requirements.

The solution carrying the precipitates is introduced by a trough or pipe 12 into a funnel shaped member 13, which widens toward its lower end 14. This funnel shaped member is located, preferably. centrally in the tank 3, and is p rovided with spiders 15, 15, serving as guldlng means for the valve stem 7. 1

The tank has a plurality of outlets 16 16 a substantial distance below its upper edge,

and communicates through the same with a launder 17, encircling the tank. The launder has a discharge opening 18, leading to trough or pipe 19, which conveys the liquid contents of the tank to a storage tank or other suitable-receptacle. Above and below the outlets 16 are arranged rings 20, 20 upon the inner surface of the tank, and to these rings is fastened in any suitable manner a filtering medium, for instance fabric 21, through which the precipitate bearing solution is caused to pass in its flow toward the launder 17. In order to properly support the fabric, a plurality of slats 22, 22 arelocated between the rings 20, their inner faces being arranged flush with the inner free surfaces of the rings.

The operation of the device is as follows: Let us suppose that the tank is empty and its outlet 5 closed by the valve 6. When the solution, carrying the precipitates, is admitted, the heavy particles will settle to the bottom of .thetank, and the liquid, when reaching the level ofthe filtering medium,

will pass through the latter into the launder Figure '1 is a vertical longitudinal sec- 17, to be led into a storage tank, or wherever itmay be desired. After a certain time the solution in the tank will rise to such a high level that the outflow thereof will be equal to the quantity flowing into the tank, and this level will remain constant, if the quantity of solution flowing into the tank during a given time interval remains constant.

It is, of course, understood that the sum at the areas of the minute openings of the filtering medium, and so also of the outlets 16, must be at least equal to the cross-section of the inlet pipe, which conveys the solution to the tank. The floating precipitates will collect on the filtering medium, as the liquid passes through the same, and are removed from time to time by hand or by mechanical cleaning means. This operation will, at the same time, prevent the clogging of the filtering material, which would otherwise result in a rising of the level of the solution in the tank.

The precipitates, collecting in the coneshaped portion of thetank, may be either drawn off continuously, if suilicient material collects, or they may be removed from time to time by unseating the valve 6.

The apparatus is especially useful in connection with precipitating apparatus which deliver a continuous flow of precipitates. it may be used, however, in other cases whenever the material to be collected is of greater specific gravity than the carrying solution, and the floating particles form only a small part of the bulk.

l clann is 1. In an apparatus of the character described, the combination with a tankhavin a plurality of discharge openings arrange all over the surfaceot'smd tank .zone

included between two parallel horizontal planes below its top, a conduit for supplying a precipitate carrying solution thereto, and a filtering medium covering said discharge openings.

2. In an apparatus ofthe character described, the combination with a tank having a plurality of discharge openings arranged all over the surface of said tank in a zone included between two parallel horizontal planes below its top, a launder encircling said tank communicating through said openings with said tank, a conduit for supplying a precipitate carrying solution to said tank, and a filtering medium covering said discharge openings.

3. In an apparatus of the character -described, the combination withv a tank having a plurality of discharge openings in a zone included between two parallel horizontal planes below its top, of a,conduit for supplying a precipitate carrying solution thereto, and a filtering medium covering said discharge openings.

Signed at New York, in the county of New York and State of New York, this 11th day of August, A. D. 1911.

Witnesses:

' Srcmunn l-lnnzos,

-Z. lKLINK.

EMANUEL waounn. 

